150S-MD HIGH PRESSURE LEVEL CONTROL W/ MAXIMUM DIFFERENTIAL Winters Needle Valves • Stainless steel components

• Stainless steel components

• Maximum operating temperature 366°F (186°C)

Sensors – Low Pressure

• Replaceable Dura-Stat® module

McDonnell & Miller PSE-800 Series Data Sheet

150S-MD HIGH PRESSURE LEVEL CONTROL W/ MAXIMUM DIFFERENTIAL Winters Needle Valves • Stainless steel componentsLow Water Cut Offs Mechanical For Steam Boilers Series 150S Low Water Cut Off Pump Controllers For commercial and industrial low or high pressure boiler applications For boilers of any steaming capacity Monel bellows provides corrosion resistance Snap action switches for high temperature service 1 Single pole, single throw switch for pump control 1 Single pole, double throw switch for low water cut off and alarm actuation Optional features Manual